There are
404 mi
from San Mateo, CA to Rancho Cucamonga, CA
That's the driving distance. It would take 7 hours 38 mins to go from San Mateo, California to Rancho Cucamonga, California.
The flight distance (direct flight from San Mateo, CA to Rancho Cucamonga, CA) is 356.73 mi.
404 mi = 650.98 kms